The Rubbermaid Commercial One-Shot Touch-Free Liquid Soap Dispenser features patented smart sensor technology that detects hands automatically to deliver the perfect amount of soap. Luxurious formulas encourage healthy hand washing. This touch-free commercial soap dispenser offers high-yield hand washing from each One-Shot soap refill. The battery lasts up to four years or 120,000 cycles, which means less maintenance required. This dispenser accepts both 800 mL and 1,600 mL liquid soap refills (sold separately).